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Finding the Fourth Proportional to 193,296.80, 266,746.32 and 108,412.04

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Solution

The fourth proportional to 193,296.80, 266,746.32 and 108,412.04 is: 149,606.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,296.80 : 266,746.32 = 108,412.04 : x
  2. Step 2: Convert to fraction form
    193,296.80/266,746.32 = 108,412.04/x
  3. Step 3: Cross multiply
    193,296.80x = 266,746.32 × 108,412.04
  4. Step 4: Simplify right side
    193,296.80x = 28,918,512,713.69
  5. Step 5: Solve for x
    x = 28,918,512,713.69/193,296.80
  6. Step 6: Final answer
    x = 149,606.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.